Scripts to list/stop/start EC2 instances

instances.sh

#! /usr/bin/env bash

source "$(cd $(dirname $0) && pwd)/conf.sh"

for r in $REGIONS; do
    aws ec2 describe-instances \
        --profile sso --region $r --output json | \
    jq '
        .Reservations[] |
        .Instances[] |
        {
            "id": .InstanceId,
            "name": .Tags[] | select(.Key=="Name").Value,
            "az": .Placement.AvailabilityZone,
            "state": .State.Name,
            "public_ip": .PublicIpAddress,
            "public_dns": .PublicDnsName,
            "private_ip": .PrivateIpAddress,
            "private_dns": .PrivateDnsName,
        }
    '
done

start-instances.sh

#! /usr/bin/env bash

"$(cd $(dirname $0) && pwd)/instances.sh" | \
    jq -r 'select(.state == "stopped") | [.id, .az] | @tsv' | \
    awk '{
        sub(/[a-z]$/, "", $2) # drop the last character of the AZ to make a region
        cmd = sprintf("aws ec2 start-instances --profile sso --instance-id %s --region %s", $1, $2)
        system(cmd)
    }'

stop-instances.sh

#! /usr/bin/env bash

"$(cd $(dirname $0) && pwd)/instances.sh" | \
    jq -r 'select(.state == "running") | [.id, .az] | @tsv' | \
    awk '{
        sub(/[a-z]$/, "", $2) # drop the last character of the AZ to make a region
        cmd = sprintf("aws ec2 stop-instances --profile sso --instance-id %s --region %s", $1, $2)
        system(cmd)
    }'